We stayed here for 1 month and it was pretty comfortable!
The pros:
-close to MRT Lat Phrao (can't do the 20 min walk just to get transport. Being near a train is a must in my book).
-clean and simple! has microwave, water heater, just enough plates and utensils etc and a big fridge. Bed is comfy, shower is hot.
-quiet area not in the center of tourist madness, we loved that!! There is a great yoga studio named Yoga Space Bangkok (look it up on FB) that is 3 min walking distance (take Kru Pims class!), Ohayo 26 (a japanese restaurant) and a cat cafe (mohu mohu) directly across the street. We went to those 3 places almost daily as they were good but also local prices.
-staff is so nice! Also there is a gym and laundry and rooftop. score!

the cons:
-a little far from most of the sights and such, but really Bangkok is huge, just take the trains no problem.
-wifi was annoying- would have issues signing in sometimes having to call support 2x/day! Also if you are working the speed just isn't there, you'll need to bring your own pocket wifi or go to the cat cafe.
-there are curtains but they are an off white and as soon as the sun rises it's as bright as heaven itself in there. Nice if you like light. Not so nice if you wanna sleep past 6am. Use sleep mask!